rui-mo commented on code in PR #13002:
URL: https://github.com/apache/gluten/pull/13002#discussion_r4025777909


##########
gluten-substrait/src/main/scala/org/apache/gluten/utils/DecimalArithmeticUtil.scala:
##########
@@ -62,6 +62,9 @@ object DecimalArithmeticUtil {
           resultPrecision = intDig + decDig
           resultScale = decDig
         }
+      // Remainder and Pmod land here: isDecimalArithmetic admits them but no 
result type is
+      // derived above. On the transformCheckOverflow path this throw is what 
makes decimal % and
+      // pmod fall back.

Review Comment:
   Thanks for checking! I didn’t realize that Velox doesn’t support the decimal 
type for `remainder` and `pmod`. It makes sense to address this in a separate 
PR.
   



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